Limited factors would mean that as the population in a community grows individual species would have to compete for those limited factors as the population reaches its carrying capacity. Also, the population as a whole would only be able to reach a certain number before falling due to there not being enough of the limited factors (ex. food) for that population to continue growing exponentially. 
 
        
             
        
        
        
It could be said that the astronomer who placed the sun in the center of the solar system was Copernicus. 
He developed the model of the universe that placed the Sun in the center rather than the Earth. It was considered the Copernican Revolution because of its contribution to science and the change of paradigm. 
        
             
        
        
        
It is found in the cytoplasm as a simple circle.
 
        
             
        
        
        
Answer:
c. bone (osseous tissue)
Explanation:
The extracellular matrix of the bone tissue consists of an organic component and an inorganic component.
The organic component includes Collagen , proteoglycans and glycoprotiens, While the inorganic component contains calcium and phopsphorus. The cells are present in the lacunae situated betwen the lamellae and contain a number of oblong spaces.
It also contains blood vessels as a typical long bons is supplied by a nutrient artery , periosteal vessels and epiphyseal arteries.
Hence C is the right answer.
 
        
             
        
        
        
brain or nervous system cells are called as neurons